The Air does not work as a counter example. It is one model, one single model saw performance increases of 150% in multicore performance, and understanding why

The Air does not work as a counter example. It is one model, one single model saw performance increases of 150% in multicore performance, and understanding why is important, because NONE of the other models saw anywhere near that performance increase and much closer to 30%-40% increases across the board. And the level of these increases is slightly more than the increases seen from the second to last gen Intels and the last gen Intels. And those performance increases were slightly more than the third to the last Intels to the second to the last Intels. And the further you go back, the smaller the performance gains are, but fundamentally all of these performance gains are incremental and not abrupt. They follow Apple's trend of increasing performance incrementally at each new release.